spsextante - R to Sextante interface - Provides a suite of geospatial analysis tools by connecting R with the Sextante geograrphical information system (www.sextantegis.com), similar to spgrass6 and RSAGA.

statistical process control - Home of the R package spc. It covers many functions to calculate control chart performance measures. Control charts are tools from the field Statistical Process Control (spc).

stream - data stream mining - A framework for data stream modeling and associated data mining tasks such as clustering and classification. Development of this package was supported in part by NSF IIS-0948893. Stream is now maintained on github at http://github.com/mhahsler/stream

survGenesInterim - Simulation of survival studies based on simulated gene expression level and patient data. Includes functions to generate such data. Resulting error and power rate can be visualized. Can be used for sample size or power estimation when planning a study.

surveillance - The R-package 'surveillance' is a framework for the development of statistical methods for the modeling and change-point detection in time series of counts, proportions and categorical data as well as continuous-time epidemic like point process phenomena.